import java.util.*;
import java.lang.*;

class Program2 {
  
  
  
  static int vowelCount; 
  static int key;
  static StringBuilder message;
  
  
  
  //This is the class constructor that initializes the message and key.   
  public Program2( String text, int N )
  {
    key = N;
    message = new StringBuilder(text);
  }
  //This is my encode method. 
  public static void encode(){
    
    int i = 0;
    int x=0;
    int totalLength= message.length();
    while (i<totalLength){
      int intValue= (int) message.charAt(i);
      int encodedValue= intValue + key*vowelCount;
      while (encodedValue>126){
        x=encodedValue- 126;
        encodedValue= x+31;
      }
      while (encodedValue<32){
        x=31-encodedValue;
        encodedValue=126-x;
      }
      char encodedChar= (char)encodedValue;
      message.setCharAt(i, encodedChar);
      
      i++;
      
    }
    
    
    System.out.println(message);
    
  }
  
  //This is the decode method.
  public static void decode(){
    int i = 0;
    int x=0;
    int totalLength= message.length();
    while (i<totalLength){
      int intValue= (int) message.charAt(i);
      int encodedValue= intValue - key*vowelCount;
      while (encodedValue>126){
        x=encodedValue- 126;
        encodedValue= x+31;
      }
      while (encodedValue<32){
        x=31-encodedValue;
        encodedValue=126-x;
      }
      char encodedChar= (char)encodedValue;
      message.setCharAt(i, encodedChar);
      
      i++;
    }
    System.out.println(message);
  }
  
  //This is the main method. 
  
  public static void main(String args[]) {
    vowelCount = 0;
    int numberOfCharacters;
    char letter;
    Scanner in = new Scanner(System.in);
    System.out.print("Enter the message: ");
    String s = in.nextLine();
    System.out.print("Enter the key ");
    key = in.nextInt();
    numberOfCharacters= s.length();
    
    for (int i = 0; i< numberOfCharacters; i++) {
      letter = s.charAt(i);
      if ( letter == 'a' || letter == 'A'||
          letter == 'e' || letter == 'E'||
          letter == 'i' || letter == 'I'||     
          letter == 'o' || letter == 'O'||
          letter == 'u' || letter == 'U'){ 
        vowelCount++;                 
      }
    }   
    
    message=new StringBuilder(s); 
    System.out.print("would you like to encode or decode [E/D]: ");
    String string1Input = in.next();

    if(string1Input.equals("E")){
      
      encode();
    }
    if(string1Input.equals("D")){
      
      decode();
    }  
    while (!string1Input.equals("D") && !string1Input.equals("E")){
      System.out.println("You entered an invalid entry");
      System.out.print("would you like to encode or decode [E/D]: ");
      string1Input = in.next();

      if(string1Input.equals("E")){
        
        encode();
      }
      if(string1Input.equals("D")){
        
        decode();
      }  
      
    }
  }
}